Method and means for making lantern slides



June 17, 1.924.

A 1,497,851 F. J. HERING METHOD AND MEANS FOB MAKING LANTERN SLIDESFiled Aug. 28, 1922 Patented J une 17, 1924.

UNITED STATES FRANZ J'. HERING, OF

ZURICH, SWITZERLAND.

METHOD AND MEANS FOR MAKING LANTERN SLIDES.

Application led August 28, 1922. Serial No. 584,840.

To all whom t mag/concern:

Be it known that I, FRANZ J AKoB HERING, civil engineer, a citizen ofSwitzerland, and residing at Zurich, Switzerland, have invented certainvnew and useful Im rovements in Methods and Means for ldaking LanternSlides, of which the following is a specication.

My invention relates to novel and useful means for obtaining lanternslides for advertising pur oses in such simple and reliable manner t atthe working may be done surely and quickly even by unskilled hand/s.

In the following specification and in the appended claims the texts,drawings, or the like which shall be reproduced and projected, arecalled originals, while the part carrying the lantern slides is termedslide carrier.

My invention is illustrated by way of example in the accompanyingdrawings, in which- Fig. 1 is a vertical section of a device,

adapted for producing combination lantern slides for use in projectionwhile Fig. 2 is a front view oi the carrier for the originals,

Figure 3 is a radial section of a mgdiication of the slide carriercombined with the plateholder and of a largerL scale.

Essential components ofthe exposing apparatus are the original carrierand the slide carrier. The former consists of a card board disc 2 whichis supported upon a. centering pin 3 and `is provided with a circulanseries of recesses 4 into which'the originals 5 (cards ,or the likebearing texts, pictures, drawings, newspaper news, or the like, 6,) areplaced. A holding disc 7 consisting of transparent material insures theeasy insertion and removal of the originals, as well as -their correctposition in the carrier 2.

The walls 8 and 8* with the original carrier and the lamp 9, and thephotographic cameral() with the plate holder 11 for the slide carrier,are mounted, preferably displaceably, upon av common base plate 12. The.slide carrier consists as shown in a more detailed and slightlymodified mannerin Figure 3 of a photographic plate 13, supported by asleeve v15, mounted in ya web or traverse 14, which is fastened to theplate-holder or frame 11; the sleeve l5 has two handles consisting ofsmall metallic discs 16 with wedge shaped rims 17. The slide carrierpermits very convenient handling when being inserted in the exposing orthe reproducing appa- .mtusswithout necessitating or grasping it at itsrim. This is of essential importance for the diameter of the projectionapparatus which maythus be relatively small. A stepped pin 18 enteringinto correspondingly shaped bores Yof the parts 13 and 16 warrants thatthe disc 13 after having been placed upon the sleeve 15 is later oninserted in the proper position into the reproducing apparatus so thatreproduction is started with the right slide and the centre of the slidecoincides exactly with the optical axis of the reproducing apparatus.

The sleeve 15 contains a small ground glass disc 19 which is located inthe plane of the sensitive layer of the photographic platel 13 afterthis latter has been inserted in the plate holder.

When using the exposing apparatus, the light of the lamp 9 is thrownupon the originals 5 and is reflected from them through the lens to theslide carrier 13. Thus negatives of all the originals are produced inone exposure upon the plate or slide carrier which is then developed ina well known manner and can be introduced at once into the reproducingapparatus. The pictures and the texts may be written or drawn upon the,original carrier in any'Y desired scale in order to be reproduced inthe manner described. It is immaterial in/which manner the originalshave been produced and' whether they are positives or negatives. If theoriginals are guided laterally or in some other way, the glass plate 7may be dispensed with, whereby disturbing effects by reflection areobviated; such disturbances may occur if the size of the glass plateexceeds a certain limit.

The invention illustrated, by way of example, in the drawings'anddescribed with reference thereto, permits obviously of many modicationswithout a departure from the principle on which the invention is based.

I claim 1 Means for making lantern slides for advertising purposescomprising in combination, an original-carrier with recesses arrangedthereon in a curve, originals arranged in said recesses, means forsupporting said carrier, means for holding it applhal against SaidSnpporting r moans, a sonrrv ol' light 'disposed for illmninating aidoriginals. a vaincra'opposito said carrivr and a plato holder and asensitive layvr in l aid camera.

:2. )loans for making lantern-slides for advm-tsing pnrpogoscomprisingin combination. an original carrier with recesses arrangvdthm-oon ina Circle, originals arrangvd in said naw-sw. meansl forsupporting vQaid carrier, moan for holding it appliod against saidsupporting meansfa, Soni-co ol light disposed f'olilluminating `Qaidoriginals, a camera opposite said oarrim' and a plate holder and aSensitive layer in Said lamera.

In testimony whereof I alix my signature in preSem-o ot two Witnesses.

F. J. HERING. Titnesses wWILLIAM H. Marum, DORA GRAF;

